## Aptitude Problems on Numbers Test Paper 311) The difference between the digits of a two-digit number is 4. What is the digit in the unit's place? To find out the answer, which of the information given in the statements P and Q is/are sufficient?
- Only P is sufficient
- Only Q is sufficient
- Both P and Q are needed
- Either P or Q is sufficient.
Let the ten's digit be x and the unit's digit be (x - 4). ∴Unit's place digit cannot be found. Q gives: x + x - 4 = 12 Hence, unit's digit: X - 4 = 8 - 4 = 4. So, only Q is sufficient. 12) The sum of the digits of a two-digit number is 14, and the difference between the digits is 2. Which of the following can be that number? - 95
- 68
- 86
- 68 or 86
Let x and y be the two digits. Then 13) If one-seventh of a number exceeds its eleventh part by 100, what is the number? - 770
- 1100
- 1825
- 1925
Let the number be x. Then, 14) The difference between two numbers is 1550. If the larger number is divided by the smaller one, the quotient is 6, and the remainder is 20. What is the smaller number? - 306
- 308
- 310
- 312
Let the numbers be x and x+1550 As we know: Dividend = divisor * quotient + remainder So, as per question: x + 1550 = 6x + 20 5x = 1530 x = 306 Smaller number = 306 Larger number = 1550 + 306 = 1856 15) The sum and difference of two numbers are 25 and 10 respectively. Find the difference of their squares. - 190
- 200
- 210
- 220
Let the numbers be x and y. Aptitude Problems on Numbers Test Paper 1 Aptitude Problems on Numbers Test Paper 2 Aptitude Problems on Numbers Test Paper 4 Problems on Numbers Concepts |